<?php

namespace app\api\controller\app\vip;

use app\common\controller\Api;

/**
 * 付费会员卡
 */
class CardPrivilege extends Api
{
    protected $noNeedLogin = ["getGoodsPrivilege"];
    protected $noNeedRight = ['*'];

    protected $model = null;
    protected $cardPrivilegeModel = null;

    public function _initialize()
    {
        parent::_initialize();
        \app\common\model\fill\Handle::check('app_config','vip');
        $this->model = new \app\api\model\app\vip\CardPrivilege;
        $this->cardModel = new \app\api\model\app\vip\Card;
        
    }


    /**
     * 获取特权商品列表
     * @return void
     */
    public function getGoodsList(){
        $limit = input('limit',10);
        $page = input('page',1);

        $type = input('type','');
        $name = input('name','');
        $sort = input('sort','time');
        $order = input('order','desc');
        $privilegeType = input('privilege_type','free');
        $cardId = input('card_id');


        $where = [];

        if($type){
            $where['course.type'] = $type;
        }

        if($name){
            $where['course.name'] = ['like',"%{$name}%"];
        }

        $where['card_privilege.type'] = $privilegeType;
        $where['card_privilege.card_id'] = $cardId;
        $where['course.uniacid'] = UNIACID;

        switch ($sort){
            case 'time':
                $sort = 'course.createtime';
                break;
            case 'price':
                $sort = 'course.price';
                break;
            default:
                $sort = 'course.createtime';
                break;
        }

        $cardInfo = $this->cardModel->where([
            'id'=>$cardId,
            'status'=>1
        ])->find();

        if(!$cardInfo){
            $this->error('获取失败');
        }

        $list = $this->model
            ->setUniacid(false)
            ->with(['course'])
            ->where($where)
            ->limit($limit)
            ->page($page)
            ->order($sort,$order)
            ->select();

        //获取card详情

        $data = [];
        if($list){
            foreach ($list as &$row) {


                $row->course->visible(['name','cover','price','price_marking','pay_type','type','id','is_vip_goods']);
                
                $cardInfo['privilege_discount_val'] = $privilegeType == 'free' ? 0 : $cardInfo['privilege_discount_val'];

                $discountPrice = \app\api\model\app\vip\CardPrivilege::getDiscountPrice($row->course->price,$cardInfo['privilege_discount_val']);

                $row->course['price'] = $discountPrice['price'];
                $row->course['price_marking'] = $discountPrice['price_marking'];
                $row->course->is_vip_goods = true;
                $data[] = $row->course;
            }
        }

        $this->success('获取成功', $data);
    }


    /**
     * 获取商品对应会员卡优惠
     * 优先级：
     *  1. 用户当前已开通会员卡
     *  2. 指定课程作用域下绑定该商品的会员卡
     *  3. 全部课程作用域且课程类型受作用 (article/video/audio/live/column) 的会员卡
     * @return void
     */
    public function getGoodsPrivilege(){

        if(!$this->auth->isLogin()){
            $this->success('获取成功', ['goodsVipInfo'=>null,'isNowGoodsVip'=>false]);
        }


        $goodsId = input('id');

        $config = \app\common\model\app\Config::getConfig('vip');


        if($config['status'] != 1 || $config['entrance'] != 1){
            $this->success('入口关闭');
        }

        $isNowGoodsVip = true;

        //如果用户开通了会员 那么先获取用户开通的会员有没有指定商品的优惠
        $userVipInfo = \app\common\model\app\vip\CardUser::getUserVipInfo($this->auth->id);

        $cardInfo = false;

        if($userVipInfo){
            //先尝试匹配 指定课程
            $cardInfo = $this->model->with(['card'])->where([
                'goods_id'=>$goodsId,
                'card.status'=>1,
                'card_id'=>$userVipInfo['card']['id']
            ])->order('card_privilege.type','desc')->find();

            //再尝试匹配 当前已开通卡的「全部课程」作用域权益
            if (!$cardInfo) {
                $cardInfo = $this->buildScopeAllCardPrivilege($userVipInfo['card'], $goodsId);
            }
        }

        //没有开通会员 或 没有已开通会员的优惠
        if(!$cardInfo){
            //先尝试匹配 指定课程绑定的会员卡
            $cardInfo = $this->model->with(['card'])->where([
                'goods_id'=>$goodsId,
                'card.status'=>1
            ])->order('card_privilege.type','desc')->find();
            $isNowGoodsVip = false;

            //再尝试匹配 启用「全部课程」作用域的会员卡
            if (!$cardInfo) {
                $cardInfo = $this->findScopeAllCardForGoods($goodsId);
            }
        }


        if($cardInfo){
            $cardInfo->getRelation('card')->visible(['title','privilege_discount_val']);
            $cardInfo->visible(['type','card']);
        }


        $this->success('获取成功', ['goodsVipInfo'=>$cardInfo,'isNowGoodsVip'=>$isNowGoodsVip]);
    }

    /**
     * 当用户已开通会员卡，构造「全部课程」作用域下的权益伪记录
     * @param array $card 已开通的会员卡
     * @param int $goodsId
     * @return false|\app\api\model\app\vip\CardPrivilege
     */
    protected function buildScopeAllCardPrivilege($card, $goodsId)
    {
        if (!$card) {
            return false;
        }

        if (!\app\common\model\app\vip\CardPrivilege::isCourseInScopeAll($goodsId)) {
            return false;
        }

        //优先 free 权益（与现有 order desc 一致）
        if ($card['privilege_free'] == 1 && ($card['privilege_free_scope'] ?? 'specify') == 'all') {
            return $this->makeVirtualPrivilege($card, 'free');
        }

        if ($card['privilege_discount'] == 1 && ($card['privilege_discount_scope'] ?? 'specify') == 'all') {
            return $this->makeVirtualPrivilege($card, 'discount');
        }

        return false;
    }

    /**
     * 全平台范围内查找：开启了「全部课程」作用域且作用于当前课程的会员卡
     * @param int $goodsId
     * @return false|\app\api\model\app\vip\CardPrivilege
     */
    protected function findScopeAllCardForGoods($goodsId)
    {
        if (!\app\common\model\app\vip\CardPrivilege::isCourseInScopeAll($goodsId)) {
            return false;
        }

        $cardModel = new \app\api\model\app\vip\Card();

        //优先 free 权益
        $card = $cardModel->where([
            'status' => 1,
            'uniacid' => UNIACID,
            'privilege_free' => 1,
            'privilege_free_scope' => 'all'
        ])->find();

        if ($card) {
            return $this->makeVirtualPrivilege($card, 'free');
        }

        //其次 discount 权益
        $card = $cardModel->where([
            'status' => 1,
            'uniacid' => UNIACID,
            'privilege_discount' => 1,
            'privilege_discount_scope' => 'all'
        ])->find();

        if ($card) {
            return $this->makeVirtualPrivilege($card, 'discount');
        }

        return false;
    }

    /**
     * 构造一条虚拟的 CardPrivilege 模型实例（不入库），用于统一返回结构
     * @param mixed $card
     * @param string $type free|discount
     * @return \app\api\model\app\vip\CardPrivilege
     */
    protected function makeVirtualPrivilege($card, $type)
    {
        $privilege = new \app\api\model\app\vip\CardPrivilege();
        $privilege->type = $type;
        $privilege->goods_id = 0;
        $privilege->card_id = $card['id'];
        //通过 setRelation 注入关联，避免再次查库
        $cardData = is_object($card) ? $card : (new \app\api\model\app\vip\Card())->data($card);
        $privilege->setRelation('card', $cardData);
        return $privilege;
    }
}